Gameer_77 meant to type that when it's time to let the player get shot, use the following code:
this setcaptive false
In order to get the civilian on the west side without having to group the unit, you can place a west soldier (any soldier--it doesn't matter which one) where you want the player to start. Save your mission, then edit the mission.sqm file with a text editor. Find the player's unit and change the "vehicle" type to the appropriate civilian type.
Reload your mission in the editor, and there you have it--the west soldier will be a civilian, but still on the west side. However, note that if you change any of the soldier's properties in the editor (by double clicking on it), the "vehicle" type will automatically reset to the normal West soldier (soldierWB). Thus, do not edit the properties after making this change, or remember to change the soldier back to a civilian if you do edit the properties.